There were three men named James Baldwin in the Greenbrier area.
(1) James Baldwin, born around 1825, husband of Emeline Baldwin. This James Baldwin was sometimes called Avis, which was his middle name. He appears on the 1870 census at 45y, with Emilene, Ann (15), Louisa (11), Elizabeth (7), Ella M. (5), & Thomas (2). (2) James Baldwin, husband of Evelina Baldwin, appears on the 1900 Census in Lewisburg at age 28.
(3) James "Thomas" Baldwin, husband of Octavia Cousins Baldwin, son of James and Emilene Baldwin. He is on the Greenbrier County census in the Williamsburg District from 1870 through 1910. He is in the Lewisburg District in 1930. He died in 6/26/1957 and is buried at the Lewisburg Cemetery.
I observed and photographed his grave in 1999. At that time it was one of the furthest graves from the roadside. The picture of the grave appears in Black Residents of Greenbrier, Monroe, Pocahontas, and Summers Counties - West Virginia - Notes of Carol L. Haynes which can be found at the Greenbrier Historical Society or the W.V. Division of Culture and History at Charleston.